dye|World dye variety

Name:C.I.Mordant Red 28,C.I.11170

Molecular Structure: Single azo class

C.I.Mordant Red 28,C.I.11170,CAS 6374-00-1,486.46,C20H18N6O7S,Metachrome Bordeaux R

Molecular Formula:C₂₀H₁₈N₆O₇S

Molecular Weight: 486.46

CAS Registry Number:6374-00-1

Manufacturing Methods : 2-Amino-4,6-dinitrophenol diazotization, and 3′-Amino-4,4′-dimethylbenzenesulfonanilide coupling.

Properties and Applications: bordeaux. Moderate soluble in water (for dark yellow red) and ethanol (for red brown). In concentrated sulfuric acid to red light purple, dilution after brown precipitation; In concentrated nitric acid for yellow brown solution; In a dilute hot sodium hydroxide solution for red brown solution. Dye aqueous solution to join concentrated hydrochloric acid have orange precipitation; Add sodium hydroxide as purple solution, and accompanied by precipitation.

List of Suppliers:

Metachrome Bordeaux R( Aktiengesellschaft für Anilin-Fabrikation )